138,675
138,675 is a composite number, odd.
138,675 (one hundred thirty-eight thousand six hundred seventy-five) is an odd 6-digit number. It is a composite number with 18 divisors, and factors as 3 × 5² × 43². Written other ways, in hexadecimal, 0x21DB3.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 30
- Digit product
- 5,040
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 576,831
- Recamán's sequence
- a(491,477) = 138,675
- Square (n²)
- 19,230,755,625
- Cube (n³)
- 2,666,825,036,296,875
- Divisor count
- 18
- σ(n) — sum of divisors
- 234,732
- φ(n) — Euler's totient
- 72,240
- Sum of prime factors
- 99
Primality
Prime factorization: 3 × 5 2 × 43 2
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,675 = [372; (2, 1, 1, 3, 1, 4, 5, 2, 10, 29, 1, 2, 3, 1, 1, 123, 1, 1, 3, 2, 1, 29, 10, 2, …)]
Period length 32 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand six hundred seventy-five
- Ordinal
- 138675th
- Binary
- 100001110110110011
- Octal
- 416663
- Hexadecimal
- 0x21DB3
- Base64
- Ah2z
- One's complement
- 4,294,828,620 (32-bit)
- Scientific notation
- 1.38675 × 10⁵
- As a duration
- 138,675 s = 1 day, 14 hours, 31 minutes, 15 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληχοεʹ
- Mayan (base 20)
- 𝋱·𝋦·𝋭·𝋯
- Chinese
- 一十三萬八千六百七十五
- Chinese (financial)
- 壹拾參萬捌仟陸佰柒拾伍
Also seen as
UTF-8 encoding: F0 A1 B6 B3 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.29.179.
- Address
- 0.2.29.179
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.29.179
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 138,675 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.